At least 30,000 people of 40 villages and 40,000 hectares of agricultural land have been affected in second wave flood in Assam’s Nagaon district, where the victims were forced to leave their homes, officials said on Saturday.In Jamunamukh LAC and Hojai LAC, more than 20,000 people are affected in the flood.The flood situation in Hojai sub-division of Nagaon district is still grim.Sources said, following incessant rainfall since last few days, Jamuna, Dimaru and Khringkhring rivers are still flowing over the danger mark.More than 40,000 hactares of agricultural land of 40 villages of Hojai sub-division in Nagaon district have been submerged.According to latest reports, the Jamuna river has submerged 15 villages in Doboka revenue circle in Nagaon district on Saturday. Jamuna, Dimaru and Khringkhring river are in spate due to heavy rains since last one week in the hilly area of Karbi Anglong district, where normal life was disrupted and thousands of families were forced to leave their homes.The Nagaon district administration has opened 10 relief camps at educational institutions and higher places for the flood-affected people.